/* ============================================================
   Precession Robotics — X17 Website Redesign
   设计语言: 精密工业风 / 品牌红 #E8192C / 深浅区块交替
   ============================================================ */

:root {
  --red: #E8192C;
  --red-dark: #C01020;
  --ink-900: #0B0F14;
  --ink-800: #11161D;
  --ink-700: #1A222C;
  --ink-600: #243040;
  --line-dark: rgba(255, 255, 255, 0.10);
  --paper: #FFFFFF;
  --paper-2: #F5F6F8;
  --line-light: #E4E7EC;
  --txt-dark-bg: #F2F4F7;
  --txt-dark-mute: #9AA5B1;
  --txt-light-bg: #12161C;
  --txt-light-mute: #5B6472;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 12px 32px rgba(8, 12, 18, 0.10);
  --maxw: 1180px;
  --nav-h: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

section[id], header[id] { scroll-margin-top: calc(var(--nav-h) + 10px); }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--txt-light-bg);
  background: var(--paper);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--red); color: #fff; }

/* ---------- 版心 ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ============================================================
   导航
   ============================================================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line-light); background: rgba(255, 255, 255, 0.97); box-shadow: 0 4px 18px rgba(8, 12, 18, 0.07); }
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo {
  display: flex; align-items: center;
  background: transparent;
  border-radius: 8px;
  padding: 0;
  height: 44px;
}
.brand-logo img { height: 36px; width: auto; display: block; transform: translateY(3.6px); }

.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a {
  display: block;
  padding: 8px 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--txt-light-bg);
  border-radius: 7px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--red); background: rgba(232, 25, 44, 0.06); }
.nav-links a.active { color: var(--txt-light-bg); }
.nav-links a.active::after {
  content: "";
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--red);
  margin-top: 2px;
}

.lang-switch {
  margin-left: 10px;
  display: flex;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  overflow: hidden;
  flex-shrink: 0;
}
.lang-switch button {
  border: 0;
  background: transparent;
  color: var(--txt-light-mute);
  font: 700 12px/1 inherit;
  font-family: inherit;
  padding: 7px 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.lang-switch button.on { background: var(--red); color: #fff; }

.nav-burger {
  display: none;
  border: 0;
  background: transparent;
  width: 40px; height: 40px;
  cursor: pointer;
  border-radius: 8px;
}
.nav-burger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--txt-light-bg);
  margin: 4px auto;
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav.open .nav-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav.open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.open .nav-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ============================================================
   通用 Section
   ============================================================ */
section.block { padding: 36px 0 96px; }
section.block.dark { background: var(--ink-900); color: var(--txt-dark-bg); }
section.block.tint { background: var(--paper-2); }

.sec-head { margin-bottom: 48px; }
.sec-head.center { text-align: center; }
.sec-head.center .sec-eyebrow { display: flex; justify-content: flex-start; }
.sec-head.center .sec-sub { margin-left: auto; margin-right: auto; }
.sec-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}
.sec-eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--red); }
.sec-title {
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.sec-sub { margin-top: 12px; color: var(--txt-light-mute); font-size: 16.5px; max-width: 760px; }
.dark .sec-sub { color: var(--txt-dark-mute); }

/* 滚动显现 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  background:
    radial-gradient(1100px 520px at 82% -10%, rgba(232, 25, 44, 0.16), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(60, 90, 130, 0.18), transparent 55%),
    var(--ink-900);
  color: var(--txt-dark-bg);
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-h);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  padding: 56px 0 56px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 0 56px;
  align-items: start;
}
.hero-copy { min-width: 0; }
.hero-badge { grid-column: 1 / -1; justify-self: start; }
.hero-media {
  margin: calc(0.649 * clamp(30px, 5.2vw, 56px) + 8px) 0 0;
  justify-self: end;
  align-self: start;
  width: min(100%, 380px);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.hero-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 72vh;
  object-fit: contain;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--txt-dark-mute);
}
.hero-badge i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--red);
  font-style: normal;
  box-shadow: 0 0 10px rgba(232, 25, 44, 0.9);
}
.hero h1 {
  margin-top: 26px;
  font-size: clamp(30px, 5.2vw, 56px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -1px;
  max-width: 900px;
}
.hero h1 .red { color: var(--red); }
.hero h1 .amp {
  display: block;
  font-size: 0.55em;
  color: var(--txt-dark-mute);
  font-weight: 600;
  padding: 6px 0 2px;
}
.hero-en {
  margin-top: 18px;
  color: var(--txt-dark-mute);
  font-size: clamp(14px, 1.6vw, 17px);
  max-width: 720px;
}
.hero-cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}
.btn-primary { background: var(--red); color: #fff; box-shadow: 0 8px 24px rgba(232, 25, 44, 0.35); }
.btn-primary:hover { background: var(--red-dark); transform: translateY(-1px); }
.btn-ghost { border-color: var(--line-dark); color: var(--txt-dark-bg); }
.btn-ghost:hover { border-color: rgba(255, 255, 255, 0.4); background: rgba(255, 255, 255, 0.05); }
.dark .btn-ghost, .hero .btn-ghost { color: var(--txt-dark-bg); }
section:not(.dark) .btn-ghost { border-color: #C9CFD8; color: var(--txt-light-bg); }
section:not(.dark) .btn-ghost:hover { border-color: #8B94A3; background: rgba(0, 0, 0, 0.03); }

/* 数据卡 */
.hero-inner .stats { grid-column: 1 / -1; margin-top: 96px; }
.stats {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.stat {
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 13px 16px 11px;
  position: relative;
  overflow: hidden;
}
.stat::before {
  content: "";
  position: absolute; inset: 0 auto 0 0;
  width: 3px;
  background: var(--red);
  opacity: 0.9;
}
.stat-num {
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
  line-height: 1.05;
}
.stat-num small { font-size: 0.55em; font-weight: 700; color: var(--txt-dark-mute); margin-left: 2px; }
.stat-label { margin-top: 3px; font-size: 13px; color: var(--txt-dark-mute); font-weight: 600; }
.stat-analogy { margin-top: 6px; font-size: 12px; line-height: 1.4; color: #7E8996; border-top: 1px dashed var(--line-dark); padding-top: 6px; }

/* ============================================================
   关于 / 诞生无锡
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: stretch;
}
.about-side { order: -1; }
.about-copy p { margin-bottom: 14px; color: var(--txt-light-mute); }
.about-copy p strong { color: var(--txt-light-bg); }
.about-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
}
.about-photo img { width: 100%; }
.about-photo figcaption {
  position: absolute; inset: auto 0 0 0;
  padding: 40px 18px 14px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.72));
  color: #fff; font-size: 13px; font-weight: 600;
}

.founder-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-content: start;
  height: 100%;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  padding: 26px;
  background: var(--paper);
  box-shadow: 0 22px 55px rgba(8, 12, 18, 0.24), 0 6px 16px rgba(8, 12, 18, 0.12);
}
.founder-card img { border-radius: var(--radius); width: 100%; align-self: start; box-shadow: 0 10px 26px rgba(8, 12, 18, 0.28); }
.founder-role { color: var(--red); font-weight: 800; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; }
.founder-name { font-size: 22px; font-weight: 800; margin: 4px 0 10px; }
.founder-quote { color: var(--txt-light-mute); font-size: 15px; }
.founder-quote em { color: var(--txt-light-bg); font-style: normal; font-weight: 600; }
.founder-tags { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 12px; font-weight: 700;
  border: 1px solid var(--line-light);
  background: var(--paper-2);
  color: var(--txt-light-mute);
  padding: 5px 12px; border-radius: 999px;
}

/* ============================================================
   技术
   ============================================================ */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 72px;
}
.cap {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 22px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  transition: border-color 0.25s, transform 0.25s;
}
.cap:hover { border-color: rgba(232, 25, 44, 0.55); transform: translateY(-3px); }
.cap-ico {
  width: 38px; height: 38px;
  border-radius: 9px;
  display: grid; place-items: center;
  background: rgba(232, 25, 44, 0.14);
  color: #FF6B7A;
  margin-bottom: 14px;
  font-size: 18px;
}
.cap b { display: block; font-size: 15.5px; color: #fff; letter-spacing: 0.2px; }
.cap span { display: block; margin-top: 4px; font-size: 13px; color: var(--txt-dark-mute); }

/* 产品家族 */
.family-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.family-head h3 { font-size: clamp(20px, 2.6vw, 26px); font-weight: 800; color: #fff; }
.family-head p { color: var(--txt-dark-mute); font-size: 14px; }

.variant-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.variant {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s, transform 0.25s;
}
.variant:hover { border-color: rgba(232, 25, 44, 0.5); transform: translateY(-3px); }
.variant-top { padding: 24px 24px 18px; }
.variant-model {
  display: inline-block;
  font-size: 12px; font-weight: 800; letter-spacing: 2px;
  color: var(--red);
  border: 1px solid rgba(232, 25, 44, 0.4);
  background: rgba(232, 25, 44, 0.08);
  padding: 4px 12px; border-radius: 999px;
  margin-bottom: 12px;
}
.variant h4 { font-size: 21px; font-weight: 800; color: #fff; letter-spacing: 0.2px; }
.variant p.desc { margin-top: 8px; font-size: 14px; color: var(--txt-dark-mute); min-height: 44px; }
.variant-specs {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
  padding: 0 24px 18px;
  font-size: 13px;
  color: #C4CCD6;
}
.variant-specs li { padding-left: 16px; position: relative; }
.variant-specs li::before { content: ""; position: absolute; left: 0; top: 8px; width: 7px; height: 2px; background: var(--red); }
.video-slot { margin: 0 24px 24px; border-radius: var(--radius); overflow: hidden; background: #000; position: relative; aspect-ratio: 16 / 9; }
.video-slot video { width: 100%; height: 100%; display: block; background: #000; }
.video-slot .video-note {
  position: absolute; left: 14px; right: 14px; bottom: 12px;
  font-size: 12px; color: #FFB3BA; letter-spacing: 0.3px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}
.video-cover {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  cursor: pointer;
  background:
    radial-gradient(600px 300px at 70% 20%, rgba(232, 25, 44, 0.25), transparent 60%),
    linear-gradient(160deg, #131A22, #0B0F14);
  border: 0; color: #fff; font-family: inherit;
  transition: opacity 0.3s;
}
.video-cover:hover .play-btn { transform: scale(1.06); }
.play-btn {
  width: 74px; height: 74px; border-radius: 50%;
  background: var(--red);
  display: grid; place-items: center;
  box-shadow: 0 10px 30px rgba(232, 25, 44, 0.45);
  transition: transform 0.2s;
}
.play-btn svg { width: 26px; height: 26px; fill: #fff; margin-left: 3px; }
.video-cover figcaption, .video-cover span.cap-text {
  position: absolute; left: 16px; bottom: 12px;
  font-size: 12px; color: var(--txt-dark-mute); letter-spacing: 0.4px;
}

/* 工艺图解 */
.process-duo {
  margin-top: 72px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.process-card {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}
.process-card header { padding: 18px 22px 0; }
.process-card h4 { color: #fff; font-size: 16.5px; font-weight: 800; }
.process-card p { color: var(--txt-dark-mute); font-size: 13px; margin-top: 4px; }
.process-card img { margin-top: 14px; width: 100%; }

/* Case study 对比 */
.case { margin-top: 72px; }
.case-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ink-800);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-size: 14.5px;
}
.case-table th, .case-table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line-dark); }
.case-table tr:last-child td { border-bottom: 0; }
.case-table thead th {
  background: rgba(255, 255, 255, 0.04);
  font-size: 13px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--txt-dark-mute);
}
.case-table thead th.hl { color: #fff; }
.case-table thead th.hl b { color: var(--red); }
.case-table td:first-child { color: var(--txt-dark-mute); font-weight: 600; font-size: 13.5px; }
.case-table td.hl { color: #fff; font-weight: 700; }
.case-table td.hl i { color: #FF6B7A; font-style: normal; font-size: 12px; display: block; font-weight: 600; }
.case-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--txt-dark-mute);
  border-left: 3px solid var(--red);
  padding-left: 12px;
}

.case-visual { margin-top: 22px; border: 1px solid var(--line-dark); border-radius: var(--radius-lg); overflow: hidden; background: #000; }
.case-visual img { width: 100%; }

/* ============================================================
   市场
   ============================================================ */
.market-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.market {
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.market-img { aspect-ratio: 16 / 9.5; background: #F0F2F5; display: grid; place-items: center; overflow: hidden; }
.market-img img { width: 100%; height: 100%; object-fit: contain; }
.market-body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.market-kicker { color: var(--red); font-size: 12px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; }
.market h3 { font-size: 22px; font-weight: 800; margin: 6px 0 4px; }
.market .en-title { color: var(--txt-light-mute); font-size: 13.5px; font-weight: 600; }
.market p { margin-top: 14px; color: var(--txt-light-mute); font-size: 14.5px; }
.market p strong { color: var(--txt-light-bg); }
.market-claim {
  margin-top: auto;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: rgba(232, 25, 44, 0.06);
  border: 1px solid rgba(232, 25, 44, 0.18);
  color: var(--txt-light-bg);
  font-size: 14px;
  font-weight: 700;
}
.market-claim b { color: var(--red); }

/* ============================================================
   客户 / 展会
   ============================================================ */
.logo-wall {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 26px;
}
.logo-wall img { width: 100%; }
.logo-wall figcaption {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: var(--txt-light-mute);
}

.event-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.event-card {
  border: 1px dashed #C9CFD8;
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  background: var(--paper);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.event-year {
  flex-shrink: 0;
  width: 74px; height: 74px;
  border-radius: var(--radius);
  background: var(--ink-900);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 800; font-size: 18px; line-height: 1.15;
  text-align: center;
}
.event-year i { display: block; font-style: normal; font-size: 10px; letter-spacing: 2px; color: var(--red); margin-top: 2px; }
.event-card h4 { font-size: 17px; font-weight: 800; }
.event-card p { margin-top: 6px; font-size: 14px; color: var(--txt-light-mute); }
.event-card .pending { margin-top: 10px; font-size: 12px; color: #98A1AE; }

/* ============================================================
   投资者
   ============================================================ */
.inv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.inv-card {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 22px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
}
.inv-card .inv-type { font-size: 11px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; color: var(--txt-dark-mute); }
.inv-card.gov .inv-type { color: var(--red); }
.inv-card h4 { margin-top: 8px; font-size: 17px; font-weight: 800; color: #fff; line-height: 1.35; }
.inv-card p { margin-top: 6px; font-size: 13.5px; color: var(--txt-dark-mute); }
.inv-contact {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.inv-person {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 14px;
}
.inv-person b { display: block; color: #fff; font-size: 15.5px; }
.inv-person span { color: var(--txt-dark-mute); font-size: 12.5px; display: block; margin-top: 2px; }
.inv-person a { display: inline-block; margin-top: 8px; color: #FF6B7A; font-weight: 700; font-size: 13.5px; }
.inv-person a:hover { text-decoration: underline; }

/* ============================================================
   联系 + 页脚
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: start; }
.contact-list { list-style: none; display: grid; gap: 18px; }
.contact-list li { display: flex; gap: 14px; }
.c-ico {
  flex-shrink: 0;
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(232, 25, 44, 0.08);
  color: var(--red);
  display: grid; place-items: center;
  font-size: 17px;
}
.c-body b { display: block; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--txt-light-mute); }
.c-body p { margin-top: 3px; font-weight: 600; font-size: 15.5px; }
.c-body a:hover { color: var(--red); }
.c-body small { display: block; color: var(--txt-light-mute); font-weight: 500; font-size: 13px; }

.qr-card {
  justify-self: end;
  text-align: center;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: var(--paper);
  box-shadow: var(--shadow);
  max-width: 260px;
}
.qr-card img { border-radius: 8px; width: 180px; margin: 0 auto; }
.qr-card b { display: block; margin-top: 14px; font-size: 15px; }
.qr-card span { display: block; color: var(--txt-light-mute); font-size: 12.5px; margin-top: 4px; }

.footer { background: #070A0E; color: var(--txt-dark-mute); padding: 34px 0; border-top: 1px solid var(--line-dark); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; }
.footer a { color: #B9C2CC; }
.footer a:hover { color: #fff; }
.footer .icp a { font-size: 12.5px; }
.icp-copy {
  border: 1px solid var(--line-dark);
  background: transparent;
  color: var(--txt-dark-mute);
  font: 600 11px/1 inherit;
  font-family: inherit;
  padding: 3px 9px;
  border-radius: 999px;
  cursor: pointer;
  margin-left: 8px;
  vertical-align: 1px;
  transition: color 0.2s, border-color 0.2s;
}
.icp-copy:hover { color: #fff; border-color: var(--txt-dark-mute); }
.icp-copy.done { color: #7DDFA0; border-color: #7DDFA0; }

/* ---------- 历史时间线 ---------- */
.timeline { position: relative; max-width: 880px; margin: 0 auto; padding-left: 28px; }
.timeline::before {
  content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(var(--red), var(--line-light));
}
.tl-item { position: relative; padding: 0 0 36px 24px; }
.tl-item:last-child { padding-bottom: 8px; }
.tl-item::before {
  content: ""; position: absolute; left: -35px; top: 5px;
  width: 12px; height: 12px; border-radius: 50%;
  background: #fff; border: 3px solid var(--red);
  box-shadow: 0 0 0 4px rgba(232, 25, 44, 0.10);
}
.tl-year { font-size: 13px; font-weight: 800; color: var(--red); letter-spacing: 1px; }
.tl-item h3 { font-size: 19px; font-weight: 800; margin: 4px 0 6px; }
.tl-item p { color: var(--txt-light-mute); font-size: 15px; max-width: 760px; }

.gen-strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-top: 56px; }
.gen-card {
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.gen-card b { display: block; font-size: 15px; font-weight: 800; }
.gen-card span { font-size: 12px; color: var(--txt-light-mute); }
.gen-card.now { border-color: var(--red); box-shadow: 0 12px 30px rgba(232, 25, 44, 0.16); }
.gen-card.now b { color: var(--red); }
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 0; }
  .hero-media { justify-self: center; width: min(100%, 340px); margin-top: 32px; }
  .hero-inner .stats { margin-top: 40px; }
  .gen-strip { grid-template-columns: repeat(3, 1fr); }
  .timeline { padding-left: 22px; }
  .tl-item::before { left: -29px; }
}
.footer-note { font-size: 12.5px; }

/* 返回顶部 */
.to-top {
  position: fixed;
  right: 22px; bottom: 22px;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-dark);
  background: rgba(17, 22, 29, 0.85);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 18px;
  display: grid; place-items: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.25s, transform 0.25s;
  z-index: 90;
}
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }

/* ============================================================
   子页头(内页通用)
   ============================================================ */
.page-hero {
  padding: calc(var(--nav-h) + 84px) 0 64px;
  background:
    radial-gradient(900px 420px at 85% -20%, rgba(232, 25, 44, 0.15), transparent 60%),
    radial-gradient(700px 380px at -10% 120%, rgba(60, 90, 130, 0.16), transparent 55%),
    var(--ink-900);
  color: var(--txt-dark-bg);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, #000 30%, transparent 80%);
  pointer-events: none;
}
.page-hero .wrap { position: relative; }
.page-hero .sec-eyebrow { margin-bottom: 12px; }
.page-hero h1 {
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.6px;
  max-width: 860px;
}
.page-hero .page-sub {
  margin-top: 14px;
  color: var(--txt-dark-mute);
  font-size: clamp(14.5px, 1.6vw, 17px);
  max-width: 760px;
}

/* 密码保护 / 待确认占位卡 */
.gate-card {
  max-width: 640px;
  border: 1px solid var(--line-light);
  border-left: 4px solid var(--red);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow);
  padding: 30px 30px 26px;
}
.gate-card h3 { font-size: 19px; font-weight: 800; margin-bottom: 10px; }
.gate-card p { color: var(--txt-light-mute); font-size: 14.5px; margin-bottom: 10px; }
.gate-card .gate-note {
  display: inline-block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--txt-light-mute);
  background: var(--paper-2);
  border: 1px solid var(--line-light);
  border-radius: 999px;
  padding: 6px 14px;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1020px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .inv-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  section.block { padding: 28px 0 72px; }
  .about-grid, .market-grid, .process-duo, .variant-grid, .event-grid, .contact-grid { grid-template-columns: 1fr; }
  .founder-card { grid-template-columns: 1fr; }
  .founder-card img { max-width: 240px; }
  .qr-card { justify-self: start; }
  .inv-contact { grid-template-columns: 1fr; }
  .case-table { font-size: 13px; }
  .case-table th, .case-table td { padding: 12px 10px; }

  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 14px 20px 22px;
    gap: 2px;
    border-bottom: 1px solid var(--line-light);
    display: none;
  }
  .nav.open .nav-links { display: flex; }
  .nav-links a { padding: 13px 10px; font-size: 15px; }
  .nav-links a.active::after { display: none; }
  .lang-switch { margin: 12px 10px 0; justify-content: center; }
  .nav-burger { display: block; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat { padding: 10px 12px 9px; }
  .cap-grid { grid-template-columns: 1fr; }
  .inv-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .variant-specs { grid-template-columns: 1fr; }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}